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Samsung is close to figuring out a unique facial recognition system that uses not one but two under-display cameras on your phone. It is described in a patent application Samsung filed with the KIPRIS (Korea Intellectual Property Rights Information Service) back in March 2021. The document in question was made public last week and picked up by a Dutch publication.

Titled “Method, Apparatus, and Storage Medium for Authenticating User,” the Samsung patent described how Samsung thought of putting multiple under-display cameras beneath the phone’s screen. The diagram showed two UDCs – each at the top and bottom – scanning the user’s face for authentication.

The patent explains how scanning from multiple angles would offer higher levels of phone security since requiring multiple angles for facial authentication would be more reliable.

At its core, the idea is pretty straightforward – get multiple images of the user from two angles to better construct a 3D model of the face and use that for authentication purposes. Samsung specifically mentions using under-display cameras, though, which is interesting in its own right. Up until now, the Korean giant has more or less just experimented with the technology on its Galaxy Fold line without a broader release.

One speculation would be that Samsung is exploring this new dual UDC tech for its foldable. And while that might very well be true, we believe that the tech has broader implications and that the desire to use UDC cameras stems from the need to have the two cameras spaced out as far as possible to get two different angles of the user.

That could necessitate placing a camera near the bottom of the phone, where the under-display fingerprints reside now. Perhaps even combining the two into one optical module.

The patent doesn’t go into so much detail. However, it does show a mockup of a phone with two UDC cameras – one at the top and one at the bottom. Another thing mentioned in the patent is measuring pupil size. The idea is that a human’s pupil size should vary depending on lighting conditions. This could be an extra security measure against using photos or masks to trick facial authentication.

The concept is certainly interesting, but it should be noted that at this stage, it is just a concept, not an actual product or any indication of one.

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